Linux下查看CPU型号,内存大小,硬盘空间的命令(详解)

1 查看CPU

1.1 查看CPU个数

# cat /proc/cpuinfo | grep "physical id" | uniq | wc -l

2 **uniq命令：删除重复行;wc –l命令：统计行数**

1.2 查看CPU核数

# cat /proc/cpuinfo | grep "cpu cores" | uniq
cpu cores : 4

1.3 查看CPU型号

# cat /proc/cpuinfo | grep 'model name' |uniq
model name : Intel(R) Xeon(R) CPU E5630 @ 2.53GHz

总结：该服务器有2个4核CPU，型号Intel(R) Xeon(R) CPU E5630 @ 2.53GHz

2 查看内存

2.1 查看内存总数

#cat /proc/meminfo | grep MemTotal
MemTotal: 32941268 kB //内存32G

2.2 查看内存条数

本节内容引自新浪博文《Linux查看内存条数》

查看原文：

# dmidecode |grep -A16 "Memory Device$"
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB //1条2G内存
Form Factor: DIMM
Set: 1
Locator: DIMM1
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Manufacturer: 7F7F7F7F7F510000
Serial Number: 0403E324
Asset Tag: 450721
Part Number: 72T256220HR3SA
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: 2048 MB //1条2G内存
Form Factor: DIMM
Set: 1
Locator: DIMM2
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: 667 MHz
Manufacturer: 7F7F7F7F7F510000
Serial Number: 0403E324
Asset Tag: 450721
Part Number: 72T256220HR3SA
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 2
Locator: DIMM3
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 2
Locator: DIMM4
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 3
Locator: DIMM5
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:
--
Memory Device
Array Handle: 0x1000
Error Information Handle: Not Provided
Total Width: 72 bits
Data Width: 64 bits
Size: No Module Installed //1个内存空槽
Form Factor: DIMM
Set: 3
Locator: DIMM6
Bank Locator: Not Specified
Type: DDR2
Type Detail: Synchronous
Speed: Unknown
Manufacturer:
Serial Number:
Asset Tag:
Part Number:

总结：该服务器有两条2G内存 ，空余4个插槽

 

3 查看硬盘

 

3.1 查看硬盘大小

 

# fdisk -l | grep Disk

 

Disk /dev/cciss/c0d0: 146.7 GB, 146778685440 bytes

 

总结：硬盘大小146.7G，即厂商标称的160G

 

4 查看系统剩余空间

4.1 查看系统整体空间剩余情况

在命令行中输入“df -h”可以查看系统的分配，已使用和可用情况。如下图：

 

 

 4.2 查看每个文件夹的占用情况

在命令行中输入 “du -sh *”可以查看每个文件夹的大小。此举可以快速定位大文件所存在的位置。

 

 4.3 查看当前文件夹下有多少文件

在命令行中输入“ls |wc -l”即可查看当前目录下的文件和文件夹数。

 

原文：http://www.jb51.net/article/97157.htm